Garlic powder contains sulfur compounds, which are believed to be responsible for some of those health benefits. Garlic powder is low in calories and rich in vitamin C, vitamin B6, and manganese. Garlic powder also contains trace amounts of various other nutrients. Garlic powder may help prevent and reduce the severity of illnesses like the flu and common cold.

The active compounds in garlic powder can reduce blood pressure. Garlic powder seem to reduce total and LDL (bad) cholesterol, particularly in those who have high cholesterol. Garlic powder contains antioxidants that may help prevent Alzheimer’s disease and dementia.